The 3M™ Flow Control Portable Dispenser System is designed for use with 3M cleaning and disinfecting concentrate products. The 3M™ Flow Control Portable Dispenser System features a built in backflow preventer, which ensures no contamination of water supply. 1 Case contains a portable dispenser, a 6 ft (1.8 m) hose, and a instruction sheet. Reusable, portable dispensers are designed for durability, comfort and the same accuracy as the wall dispenser